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FR943074A - Perfectionnements aux tubes à décharge - Google Patents

Perfectionnements aux tubes à décharge

Info

Publication number
FR943074A
FR943074A FR943074DA FR943074A FR 943074 A FR943074 A FR 943074A FR 943074D A FR943074D A FR 943074DA FR 943074 A FR943074 A FR 943074A
Authority
FR
France
Prior art keywords
discharge tubes
tubes
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR943074A publication Critical patent/FR943074A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
FR943074D 1943-05-28 1947-03-12 Perfectionnements aux tubes à décharge Expired FR943074A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US488825A US2416661A (en) 1943-05-28 1943-05-28 Dispenser type cathode electric discharge device

Publications (1)

Publication Number Publication Date
FR943074A true FR943074A (fr) 1949-02-25

Family

ID=23941276

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943074D Expired FR943074A (fr) 1943-05-28 1947-03-12 Perfectionnements aux tubes à décharge

Country Status (3)

Country Link
US (1) US2416661A (fr)
BE (1) BE477491A (fr)
FR (1) FR943074A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491425A (en) * 1946-01-26 1949-12-13 Raytheon Mfg Co Electrode structure for gaseous discharge devices
US2678403A (en) * 1946-05-03 1954-05-11 Us Navy Grid probe structure
US2592556A (en) * 1947-09-25 1952-04-15 Kenneth J Germeshausen Gaseous-discharge device
US2624024A (en) * 1949-10-26 1952-12-30 Hartford Nat Bank & Trust Co Cathode for use in electron discharge tubes
US2640949A (en) * 1951-02-07 1953-06-02 Atomic Energy Commission Electron source
NL95281C (fr) * 1952-04-09
US2757308A (en) * 1954-01-28 1956-07-31 Gera Corp Emissive cathode
US3201639A (en) * 1955-02-09 1965-08-17 Philips Corp Thermionic dispenser cathode
GB931059A (en) * 1961-02-10 1963-07-10 Thorn Electrical Ind Ltd Improvements in and relating to thermionic cathodes
US3439210A (en) * 1966-01-03 1969-04-15 Hughes Aircraft Co Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment
US3461334A (en) * 1967-02-27 1969-08-12 Westinghouse Electric Corp Ceramic discharge lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR593479A (fr) * 1924-04-10 1925-08-24 Philips Nv Tube à décharge à cathode incandescente, ayant une enveloppe consistant partiellement en matière isolante et partiellement en métal
US2201731A (en) * 1938-11-30 1940-05-21 Gen Electric Discharge tube electrode assembly
US2317222A (en) * 1941-03-20 1943-04-20 Bell Telephone Labor Inc Electron discharge device

Also Published As

Publication number Publication date
BE477491A (fr)
US2416661A (en) 1947-02-25

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